GEOM_ecto: GEOM_ecto

In mrke/NicheMapR: R implementation of Niche Mapper software for biophysical modelling

GEOM_ecto

Description

R version of Fortran GEOM.f (ectotherm model) for calculating biophysically relevant object surfaces, volumes and linear dimensions.

Usage

GEOM_ecto(
  AMASS = 0.04,
  GEOMETRY = 3,
  SHP = c(1, 3, 2/3),
  CUSTOMGEOM = c(10.4713, 0.688, 0.425, 0.85, 3.798, 0.683, 0.694, 0.743),
  ANDENS = 1000,
  SKINW = 0.001,
  SKINT = 0,
  RINSUL = 0,
  PTCOND = 0.1,
  PMOUTH = 0.05,
  PANT = 1
)

Arguments

AMASS	body mass, kg
GEOMETRY	organism shape, 0-5, 0=plate, 1=cyl, 2=ellips, 3=lizard (desert iguana), 4=frog (leopard frog), 5=custom
SHP	vector of ratios of dimensions of long to short axes of linear dimensions
CUSTOMGEOM	custom shape coefficients. Operates if shape=5, and consists of 4 pairs of values representing the parameters a and b of a relationship AREA=a*mass^b, where AREA is in cm2 and mass is in g. The first pair are a and b for total surface area, then a and b for ventral area, then for sillhouette area normal to the sun, then sillhouette area perpendicular to the sun
ANDENS	animal density (kg/m3)
SKINW	fraction of total surface area acting as a free water surface (fractional, 0-1)
SKINT	fraction of total surface area in contact with another individual of the same temperature (fractional, 0-1)
RINSUL	depth of insulation (m) (not yet used)
PTCOND	fraction of total surface area in contact with the substrate (fractional, 0-1)
PMOUTH	fraction of total surface area that is 'wet' mouth (fractional, 0-1)
PANT	multiplier on breathing rate, for respiratory water loss via panting (used here to open mouth if > 1)

mrke/NicheMapR documentation built on April 3, 2024, 10:05 a.m.